Hand-punch.



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.hw 7 0 9 oo oo nu N HENRY E. WALTER, OF WAKEFIELD, KANSAS.

HAND-PUNCH.

Specification of Letters Patent.

Patented May 26, 1908.

Application filed September 1'7, 1907. Serial No. 393,288.

To all whom it may concern:

Be it known that I, HENRY E. WALTER, a citizen. of the United States, residing at VVakeield, in the county of Clay and State of Kansas, have invented a new and useful Hand-Punch, of which the following is a specification.

This invention relates to new and useful improvements in hand punches and similar tools, and in its broad conception it comprises a pair of pivoted handle members constructed and arranged to operate a sliding plunger.

In connection with a hand punch of the above general type, the invention aims as a primary object to provide a novel construction of parts, the details of which will appear in the course of the following description, in which reference is had to the accompanying drawings forming part of this specification, like characters of reference designating similar parts throughout the several views, wherein:

Figure 1 is a bottom plan view, partly broken away, of a hand punch constructed in accordance with the present invention; Fig. 2 is a side elevation thereof; Fig. 3 is a section on the line 3-3 of Fig. 2 g Fig. 4 is a detail perspective view of a guide and wear plate comprehended in the invention 3 and Fig. 5 is a similar view of an adjustable gage comprehended in the invention.

The body of the punch is constituted of upper and lower plates 5 and 6, the plate 5 having its front portion of increased depth as at 7, beyond which it is formed with a spaced overhanging jaw 8. The portion 7 is held by means of a bolt 9 between spaced parallel ears 10 provided at the front end of the plate 6. The ears 10 fit between end flanges 11 provided upon the side pieces 13 of a wear plate 14, the latter being illustrated more particularly in Fig. 4, and being located between the front end portions of the plates 5 and 6. The plate 14 serves as a guide for a plunger 15, which has axial sliding move ment between the plates 5 and 6, longitudinally thereof, the plunger 15 carrying at its front end a punching die 16. The die 16 works through an opening 17 in a die-block 18, which is held in the jaw 8 by means of a transverse key 19, the opening 17 being in registry with a bore 20 out through said jaw. The plunger 15 is provided on each side thereof for some distance from its rear end with rack-teeth 21, which cooperate with integral pinion segments 22 provided at the ends of handle members 23. The members 23 are held pivoted between the plates 5 and 6 by bolts 24, which also connect the plates 5 and 6, and are held from displacement by nuts 25. A lock plate 26 is provided for holding the nuts 25 against rotation, the

plate 26 being formed at its ends to'engage the fiat side faces of said nuts, and being held upon the plate 6 by a screw 27.

The plate 5 at its rear end is constructed with spaced depending lugs 28, which abut the rear end of the plate 6 as a shoulder, the lugs 28 affording a guide for the rounded rearwardly axially projecting stein 29 of the plunger 15.

It is preferred to hold the wear plate 14 against play, and with this object in view set-screws 30, held by look-nuts 31, are threaded through the ears 10 and through the base of the plate 5, the ends of the screws 30 bearing against the side pieces 13 and the under face of the plate 14.

For the purpose of gaging the distance at which the hole is to be punched, from the edge of the piece being worked upon, a member 32 is provided, illustrated more particularly in Fig. 5, having a gage inger 33 projecting transversely through the space between the portion 7 and the jaw 8, and having a shank 34 provided with a longitudinal slot 35, an adjusting and set-screw 36 being engaged through the slot 35 and threaded into the side of the head 8.

In use, the handle members 23 are moved on their pivots, towards one another, to eHect an operative action of the plunger 15 to the position shown in Fig. 1. To retract the plunger, said handle members are moved in an opposite direction, these operations being performed on account of the intermeshing engagements of the segments 22 with the rack-teeth 21. The wear plate 14 effectually takes up play, and serves to render the plunger readily responsive to the operative movements of the handle members. Any of the operating parts, when worn away, may readily be removed and replaced by new ones.

Itis to be understood that the parts of the device herein described may be of any material, size, or relation, in the discretion of the manufacturer, not inconsistent with the claims, so only the operativeness and objects of the invention be subserved.

lower plate being formed at its front ends What I claim is:

l. A tool of the type set forth, comprising upper and lower connected spaced plates, the lower plate being formed at its front ends with spaced ears7 a wear plate having side pieces engaged with said ears, set-screws for holding said wear plate against play, the upper plate being formed at its end with a j aw having a die-block, a plunger slidably mounted between said plates and carrying a die cooperating with said die block, and means for sliding said plunger.

2. A tool of the type set forth, comprising upper and lower connected spaced plates, the

with spaced ears, the upper plate having a portion secured between said ears, a wear l plate, having side pieces, mounted between said ears, said side pieces being provided with anges at their ends engaging said ears, set screws for holding said wear plate and its side members against play, the upper plate being formed at its end with a jaw having a die-block, a plunger slidably mounted between said plates and carrying a die coperating with said die-block, and means for sliding said plunger.

In witness whereof l have hereunto aHiXed my signature in the presence of two subscribing witnesses.

HENRY E. WALTER. Witnesses:

GRACE HAND, ROY COOK. 

